Clutch



Dec. 30, 1930. A. D. GARGQLlNsK; Y 1,786,708

CLUTCH Filed May 11. 1929 v "Q" y "lill i@ 7 IN1/5N TUR' ANTHONY D; GARGOLINSKI, OF WORCESTER, MASSAGHUSTTS, ASSIGNORTO CBOMPTON @t KNOWLES LOOM WORKS, F VGRCESTER, MASSACHUSETTS.' .A CORPORATION OF MASSACHUSETTS Application sied May `11,v

This invention `relates to a clutch and it is the general object of the invention to provide means to require the clutch elements, once disengaged, to undergo a relative angular move- 1 lment of 720 before the elements can be again -iipright shaft. V`Wlien the loom has a niaga- Zine onone end thereof with a single shuttle box under the magazine andshifting shuttle a boxes on the opposite end7 it is important to prevent a change of the boxesk when the active shuttle is in the single box under the niaga- Zine. It this were not done it would be possible to get the active shuttle back `into the wrong cell of the shifting shuttle boxes. A

device for preventing such an occurrence and insuring the correct timing of the shaft with respect to the kloom issliown in priorPatent No. 1,565,639 to Gordon. It is an important object of my present invention to'rprovide a clutch which will accomplish the general results set forth in the Gordon' patent but with simpler mechanism.. i l A i t is a further objectof invinvention to provide a clutchomechanism having driving and driven'elements and acoiipling device Jfor said elements thev movements of which are determined by a controller movable ypreterablv radially7 with'respect to the aXisof the clutch and angularlywith one of the-elements thereof.

lt is a more specific object of my invention to provide driving and driven clutch elements in one of which is formed a. groove or ytrack cam to Y receive a movable controller,` the `groove or track cam being so formed that two complete revolutions Vot one element are necessarv with respect to the other element betore the controller will permit engagementot the elements.

Vith't-liese and other objects in view which will appear'asj the description proceeds, my invention resides in the combination and arrangement ofl parts hereinafter described and set forth inthe claims,y Y.

CLUTCH 192e. serial no. '362555.

i Intlie accompanying drawings wherein l nave shown a convenient embodiment of inv invention, 'Y V i Fig. y1 is an elevation of my improved clutch showing the driving and driven mem# bers connected together bythe coupling,

Fig. 2 is View similar yto Fig. 1 but with the key removed and 'prevented from morini? to drivinfrposition. by my improved -con`- troller, i

Fig. .3 .is a .horizontal section on liney 3-3 or Fig. 1,

Fig. eis a vertical section ron line tdi of Fig. 2,

F'. 5 is a horizontal section on line 5115 i i' 2: i

G is a horizontal section on linen-f6 of Fig. 4,- 'Y

Fig. v7 isa detailedperspect-ive view with againstmoving downwardli7 by means oita collar 13 held in position on the shaft bv means of a set screw 14. o

The driven member of the clutch indicated at 15 is keyed as at 16 to the shaft l2 and `has V'therein avertical` slot 17 lwhich isadapted in certain angular positions` of the driving `and driven elements to be in lalignment with another slotf18 formed `in. theghub 19 of the driving gearl'l.

A coupling or l-:ey member 2O has a tongue 21 which moves in the slots 17 and 18. This f coupling member is providedwith a Vhub 22 havingV a1 groove 23 to receive theiingers not shown of a lifting lever. The coupling meniberk isA free to slide vertically 12.

scribed to weft replenishing loom it is de along the shaft When apivilying'the clutch of the form del CII sirable to prevent the tongue 21 from operatively connecting the driving and driven element-s when the active shuttle is on the single box end of the loom. It is to be understood f that the shaft 12 makes a complete revolution each pick of the loom andtherefore makes two complete revolutions for the movement of the active shuttle from the drop box to the plain end and back again to the drop box end of the loom, it being understood that each Hight of the shuttle across the loom corresponds to a pick. With the active shuttle in the drop or shifting boxes, therefore, at any particular cycle in the pick of the loom, the tongue 21 will be in a predetermined angular position with respect to the shaft 12. On the next pick when the act-ive shuttle is in the plain or single box end of the loom and at the same predetermined time the tongue will be in the same angular relation relatively to the shaft, but it will be necessary to prevent said tongue under these conditions from moving to driving position The matter thus far described is of common construction in the upright shafts of socalled Knowles looms and forms no part of my present invention.

In carrying my invention into effect I provide the hub 19 with a horizontal upwardly opening slot 30 into which extends a lug 31 formed on a controller 32 which as shown herein is in crescent form. vThe right and left hand ends of the controller 33 and 34, respectively, as viewed in Fig. 5, extend bel yond the slot 30 to support said controller and rest on the upper surface 35 of the hub 19.

As shown in Figs. 3 and 5 the driven eleunent 15 which is keyed to the shaft 12 is pro* vided with a groove or track cam designated generally at C. The element 15 is provided with a depending arcuate web 36 which is not formed in a complete circle but has one portion thereof broken away as suggested in Figs. 3 and 5. This web 36 lies intermediate the outer wall 37 and the hub portion 38 of the element 15. The Wall 37 is provided with a blunt inwardly extending point 39 approximately centrally located with respect to the right and left hand ends 40 and 41, respectively, of the web 36. The hub portion 38 is also provided with a pointed projection 42 which is preferably in radial alignment with the point 39 relatively to the axis of the shaft 12. The web 36 lies in such a position as to define an outer groove 43 with the wall 37 and an inner groove 44 with the hub portion 38.

As shown inFigs. 3 and 5 the outer or conveX face 45 of the controller is so formed as to be substantially concentric with the` portions 46 and 47 of the Wall 37 which are located at the right and left, respectively, of the point 39. This relation is not necessary but I find it to be desirable. The inne-r or concave surface 48 of the crescent-shaped controller is so formed as to move without interference with the point 42 when the controller is passing from one groove to the other.

During normal operation the tongue 21 of the coupling member lies in both slots 17 and 18 and all of the parts mounted on shaft 12 will rotate as a unit. Inasmuch as there is no relative angular movement between the elements of the clutch the controller 32 will lie in the position shown in Fig. 3. If it be desired to make a pickout because of a mispick in the cloth it will be necessary to disconnect the shaft 12 from the driving mechanism of the loom in order to move the pattern chain to operate the harnesses. This result is accomplished by lifting the connect ing member 2O from the position shown in Fig. 1 to that shown in Fig. 2 by means of the previously described but not shown fingers or lever. By means of other mech anism not shown but well understood in the art of weaving the shaft 12 is then moved by a hand wheel, not shown, the gear 10 being held against rotation because of the fact that the loom is at rest and the bevel gear 11 there fore also remaining stationary. The driven memberl, however, being keyed to the shaft 12 rotates with the latter but during this rotation the controller 32 is held against angular movement with respect to the bevel gear 11 by reason of the fact that the lug 31 extends into the slot 30 in the hub of said gear 11. In other words during the manual rotation of the shaft 12 and driven element 15 the controller can move only in a radial direction with respect to the aXis of the shaft 12.

Then the shaft 12 is rotated the controller 32 will leave the inner groove and enter the outer groove 43 by engagement with either the surface 46 or surface 47, depending upon the direction of rotation. The point 42 will engage the concave face of the crescent controller to prevent the latter from remaining in the inner groove.

After the controller has entered the outer groove it will remain in a position to be under the tongue 21 when the latter arrives at the angular position where the hand rotation of the shaft 12 started. At the end of the lirst complete revoluti-on, therefore, the controller will be under the coupling member and the loom will be in a position such that under normal conditions the active shuttle would be on the plain or magazine end of the loom. The clutch cannot under these conditions be connected with theloom and the weaver will be required to make another revolution of the shaft 12. In doing so the controller will move from the outer groove 43 past the point `39 into the inner groove 44 and at the end of the second revolution the controller will be in the inner groove or out of vertical alignlll() ment. "with the; tongue and ythe 1 latter. Will therefore be :ireoto move downwardly `to establish driving connections between the clutch elements.

lnFig. 8. is shoivn the center lineof the double. greove-- The vertical and horizontal aXesY and X, respectively, pass through the axis-ot shaft l2.. As theY groove rotates in theV direction Aoi" arrow 61": Ythecontroller. will move along thefvert'ial aXisY from` point 60. Vto point. 62. The Controller arrivesY nt point .62. atthe end of one ,Complete rotation of the elementl. 1 During the ncxtfrotaton of the: groove theeontroller will move back to point 60. From. this it'ivillbe seen that the ,controllerV must pass around the yshal't tWicebefore arriving at the point 60. The center line of the grooveV 4cam .slots-hewn in Fig. 8 is substantial-ly a limacomalthough l do not Wish to be limited to a. curve Which is strictly of this type. V

TFrom the foregoing it Will .be seen'zthat l have provided a clutch so-,constructed that tivoicomplete revolutions-otone oi the clutch elements is rnecessary with respect ,to -the otherV before thefcouplingamember can operatively connect the clutch elements; ity will also beseen that the points 39 and .assist in deflectingthezeontrollen32 `as' thefsame passes fromy one@of-thelgrooves .to the other. By referring to-FigyS itv Will bessen that the tenterv line'ofv the. cam groove is formed of tivo loops one Within the-other and the center .of the# clutch passing through both loops. f f

Having thus described my invention itivill be seenr that changes `and modiiications vmay be ,made therein` by` those skilled inthe art Without departing fromfthe spirit and scope n of the invention kand l do not lWish to beilimited to the detailsherein disclosed, but what l claim isz: K

l. In a clutch mechanism, ashaftv tov be rotated, driven; clutch :element secured f .to the shaft, a drivingelement, a coupling -mem` ber movable to driving position tooperatively connect the elements. and movable also to non-.driving ,position to operatively ysdisconneet said elements, said elements capable-of relativeangular movement when the elements are operatively disconnected, a controller for vthe coupling member movable radially and peripherallyvvith respect to the shaft out.l of and into'the path of. tliecoupling'member, and means to causejradial movement of the controller when the ele-ments moi-eangularly relatively to each other.l

2. In ay clutch mechanism, a L.shaft Kto be rotated, a driveniclutchelement securedY to 60. the shaft,r a driving'elemenua coupling memto 'non-drivingl f positionfto operatively f disconnect said elements,v said elementscapable of .relative-ianggilaemovement.fvvhenfitheclesv mentsV are operatively disconnected, a controller movable radially of the .shaft into. ,the

path ofthe coupling member to prevent cooperation of the elements and movable radi'- ally and vperipherallyr of the shaft out of the path of the member to permit the coupling to move to operatively connect the elements, and means to move the controller radially oi the shaft'and transversely of the path of movement Vof the coupling member as the elements'niove relatively to each other.v

-Lwln a clutch mechanism, a .shaft to be rotated, a driven clutch element secured to theshaft',a driving element, a coupling inember movable to driving position to operativelyl connect theelements and movable also tlo@non-driving position `to operatively disconnect .said elements, said elements capable of relative angular movement when the. element-sl are operatively disconnected, yacontroller movable peripherally of andtoivard the` shaft out of the path of the coupling to permit the latter to operatively connect the elements and saidcontroller being-movable peripherally of and away fromthe shaft into the path of the coupling to prevent thelattei-l ronroperatively `connecting,` the elements` means to prevent relative angular movement of the controller'l and one element, and-means carried by the other element to cause the ycontroller to move-toward and romthe shaft when the; elements move. angularly relatively to` eachl other. Y 1 .Y

yn. a clutchrmeehanism, a Ashaft to'be rotated, a driven clutch element secured to the shaft, a drivingelement, acoupling menr ber movable yto driving positionto operatively connect the elements andfmovableY to non-drivingL fposition to operatively' discon-V neet sai/'d elements;` saidl elements, capable of relative angular movementgvvhen the. elements` arel operatively; disconnected, a ,controller movable: radially and vperiphefally oiitlie shaft, Loingmovablein one direction out oi" the ,pathfotthe cou-plingmember to pe 1mit the lattertomove to establish operativeconnec'tion betweentlie elements, and saidcontroller being movable inthe otherV direction into the ypath of .movement of tliecoupling member to prevent the latter from establish..V

ing-.operative connections between, the elements, and meansdependent upon relative angular movement of the elements .and operative toimove the contro-ller.

5. ln afclutchmechanism, a `shalt to be rotated, va driven clutch. element secured to the shaft, a driving element, a coupling member movable to driving` position to operatively connect the elements and 'movable also to non-driving .position to .operatively disconnect said elements, said elements capable of relative angular iovement when the elements are operatively disconnected,` a ycontroller, movable radially and peripherallywof the shaft, Lbei-nginovable zin one direction out ot sov the path of the coupling to permit the latter to move to establish operative connection between the elements, and said controller being movable in the other direction into the path of movement of the coupling to prevent the latter from establishing operative connec tions between the elements, means to cause the coupling to move with one element, and means moving with the other element to cause the controller to move when the elements move angularly relatively to each other.

6. In a clutch mechanism, a shaft to be rof tated, a driven clutch element secured to the shaft, a driving element, a coupling member movable to driving position to operatively connect the elements and movable also to nondriving position to operatively disconnect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, a controller movable radially and peripherally of the shaft, being movable in one direction out of the path of the coupling member to permit the latter to move to establish operative connection between the elements, and said controller being movable in the other direction into the path of movement of the coupling memberto prevent the latter from establishing operative connections between the elements, means to cause the controller to move with one of the elements and guide the controller, and means moving with the other element to cause the controller to move when the elements move relatively to each other.

7. In a clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft, a driving element, a coupling memberv movable to driving position to operatively connect the elements and movable also to nondriving position to operatively disconnect said elements,

' said elements 1capable of relative angular movement when the elements are operatively disconnected, means moving with one of the elements to define two cam grooves which intersect, a controller for the coupling member movable in the grooves, and means moving with the other element to prevent said controller from moving angularly with respect to said other element, said controller moving from one groove to the other and passing through the intersection of the grooves, the controller when in one groove preventing the coupling member from connecting the elements and when in the other groove being out of the path of the coupling member.

8. In a clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft, a driving element, a coupling member movable to driving position to operatively connect the elements and movable also to nonn driving position to operatively disconnect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, a controller movable along a line extending toward and from the shaft, being movable in one direction out of the path of the coupling member to permit the latter to move to establish operative connection between the elements, and said controller being movable along the Said line in the other direction into the path of movement of the coupling member to prevent the latter from establishing operative connections between the elements, means moving with one of the elements to define two cam grooves which intersect each other, a controller movable in the cam grooves, and means carried by the other element to require the controller to move around the axis of the clutch as one of said elements rotates, said cam grooves being so formed as to require two complete revolutions of one of the elements to restore the controller to normal position, said controllerat the end of the first complete revolution lying in the path of the coupling member.

9. In a. clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft, a driving element, a coupling member movable to driving position to operatively connect the elements and movable also to non-driving position to operatively dis connect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, one of the elements having two grooves, portions of which are substantially concentric and other portions of which intersect, a controller located in one of said grooves normally in one of the concentric portions thereof, and means operative during relative rotation of the elements to cause said controller to move from one groove through the point of intersection to the other groove during one revolution of an element to lie in the path of movement of the coupling member, said means acting to cause the controller to move from said other groove through the points of intersection back to the first groove during the second revolution of the element to restore the controller to normal position where it is out of the path of the coupling member.

l0. In a clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft, a driving element, a coupling member movable to driving position to operativelj,1 connect the elements and movable also to nondriving position to operatively disconnect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, a controller for the coupling member, means defining a path to guide said controller, the path being substantially similar to a limacon, said controller in normal position being in a portion of the path out of controlling position with respect to the coupling member, and means to move the controller to another part of the path after a complete revolution of one of the elementswith respect to the other element, said controller when in the other part of the path preventing the coupling ,member from connecting they elements together.

il. in a clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft,l a driving element, a coupling member movable to driving position to operatively connect the elements and movable also to nondriving position to operatively disconnect said elements, said elements capable of rela" tive angular movement when the elements are operatively disconnected, the driving element having a radial slot and an upper surface through which theislot extends, the driven element having formed therein a groove formed'on two portions parts of which are substantially concentric and parts of whichV intersect, and a controller resting on the upper surface of the lower element and having a part to extend into the slot, said controller extending into the groove in the upper element, said upper element being movable angularly with respect to the lower element, the controller being movable in a direction parallel to the slot in the lower member and being guided in the groove in the upper element, said controller Trvhen in one of the concentric parts of the groove being out of the path of the coupling member and when in the other ot the concentric parts of the groove being in the path of the coupling` member to prevent the latter from operatively connecting the elements.

12. In a clutch mechanism, a shaft to be rotated, a driven clutch element secured to the shaft, a driving element, a coupling `member movable to driving position to operatively connect the elements and movable also to nondriving position to operatively disconnect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, one of said elements being movable around the axis of the clutch while the other element remains at rest, a con-- troller for the coupling member normally out ot the path of the coupling member and having engagement with the element which remains at rest while the other element rotates,

driving position to operatively disconnect said elements, said elements capable of relative angular movement when the elements are operatively disconnected, a controller for the coupling member located between the elements, and means to cause the coupling controller to move toward and Jfrom the axis ot' the clutch and peripherally thereof when one of said elements rotates with respect to the other element, two complete revolutions of one of the elements with respect to the other being necessary to restore the controller to normal position, said controller at the completion of the h'rst revolution lying in the path ot the coupling member to prevent the latter iirom connecting operatively the elements of the clutch.

14.. yIn a clutch, a driving element, a driven element, a coupling member to connect the elements together operatively and movable to disconnect said elements, means on one element defining a cam groove having two loops, one within the other and through bot-h of which the axis of the clutch passes, a controller for the coupling member between the elements and having a part located in the groove, and connections between the other element and the controller' to cause the latter to move relatively to the coupling member, the controller being normally out oit engaging position relatively to the coupling member and movable into engaging position after a complete revolution of one element relatively to the other, said controller being moved back to normal position after two complete revolutions of one element relatively to the other.

ln testimony whereof I have hereunto aihxed my signature.

i-iNrlHONYy D. GARGOLINSKI.

Cil 

